Articles | Volume 34, issue 1
https://doi.org/10.5194/ejm-34-35-2022
https://doi.org/10.5194/ejm-34-35-2022
Research article
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25 Jan 2022
Research article | Highlight paper |  | 25 Jan 2022

The influence of oxygen fugacity and chlorine on amphibole–liquid trace element partitioning at upper-mantle conditions

Enrico Cannaò, Massimo Tiepolo, Giulio Borghini, Antonio Langone, and Patrizia Fumagalli

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Cited articles

Adam, J. and Green, T.: The influence of pressure, mineral composition and water on trace element partitioning between clinopyroxene, amphibole and basanitic melts, Eur. J. Mineral., 15, 831–841, https://doi.org/10.1127/0935-1221/2003/0015-0831, 2003. 
Adam, J. and Green, T.: Trace element partitioning between mica- and amphibole-bearing garnet lherzolite and hydrous basanitic melt: 1. Experimental results and the investigation of controls on partitioning behaviour, Contrib. Mineral. Petr., 152, 1–17, https://doi.org/10.1007/s00410-006-0085-4, 2006. 
Bali, E., Audétat, A., and Keppler, H.: The mobility of U and Th in subduction zone fluids: An indicator of oxygen fugacity and fluid salinity, Contrib. Mineral. Petr., 161, 597–613, https://doi.org/10.1007/s00410-010-0552-9, 2011. 
Bali, E., Keppler, H., and Audetat, A.: The mobility of W and Mo in subduction zone fluids and the Mo-W-Th-U systematics of island arc magmas, Earth Planet. Sc. Lett., 351–352, 195–207, https://doi.org/10.1016/j.epsl.2012.07.032, 2012. 
Barnes, J. D., Manning, C. E., Scambelluri, M., and Selverstone, J.: The Behavior of Halogens During Subduction-Zone Processes, in: The role of Halogens in terrestrial and extraterrestrial geochemical processes, edited by: Harlov, D. and Aranovich, L., Springer, Berlin, Germany, 46 pp., https://doi.org/10.1007/978-3-319-61667-4_8, 2018. 
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Short summary
Amphibole–liquid partitioning of elements of geological relevance is experimentally derived at conditions compatible with those of the Earth's upper mantle. Experiments are carried out at different oxygen fugacity conditions and variable Cl content in order to investigate their influence on the amphibole–liquid partition coefficients. Our results point to the capability of amphibole to act as filter for trace elements at upper-mantle conditions, oxidized conditions, and Cl-rich environments.